<template>
	<!--在数据请求回来之前，数组里面是空对象，所以会有闪烁等其他bug，使用if判断之后在显示  -->
	<view v-if="goods_info.goods_name" class="goods-detail-container">
<!-- ........................................轮播图区域...................................... -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item,i) in goods_info.pics" :key="i">
				<!-- 轮播图大图片 -->
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
<!-- ........................................轮播图区域...................................... -->		
	

<!-- ........................................商品信息区域.................................... -->
<view class="goods-info-box">
	<!-- 商品价格 -->
	<view class="price">¥{{goods_info.goods_price}}</view>
	<!-- 商品信息主体区域 -->
	<view class="goods-info-body">
		<!-- 左侧商品名称 -->
		<view class="goods-name">{{goods_info.goods_name}}</view>
		<!-- 右侧收藏图标 文本 -->
		<view class="favi">
			<uni-icons type="star" size="18" color="gray"></uni-icons>
			<text>收藏</text>
		</view>
	</view>
	<!-- 运费 -->
	<view class="yf">快递：免运费</view>
</view>
<!-- ........................................商品信息区域.................................... -->						

<!-- ........................................商品图文信息区域................................ -->						
	<rich-text :nodes="goods_info.goods_introduce"></rich-text>
<!-- ........................................商品图文信息区域................................ -->						
<!-- ........................................商品购物车导航组件.............................. -->
		<view class="goods_nav">
			<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
		</view>
<!-- ........................................商品购物车导航组件.............................. -->						
	</view>
</template>

<script>
	import {mapState,mapMutations,mapGetters} from 'vuex'
	
	export default {
		computed:{
			...mapState('m_cart',[]),
			...mapGetters('m_cart',['total'])
		},
		watch:{
			// total(newVal){
			// const findResult = this.options.find(x => x.text === '购物车')
			// if(findResult){
			// 	findResult.info  = newVal
			// 	}
			// }
			total:{
				handler(newVal){
					const findResult = this.options.find(x => x.text === '购物车')
					if(findResult){
						findResult.info  = newVal
						}
					},
					immediate: true
					
				}
			
		},
		data() {
			return {
				//商品详情对象
				goods_info: {},
				
				//左侧按钮组件配置对象
				options:[{
					icon: 'shop',
					text: '店铺'
				},{
					icon: 'cart',
					text: '购物车',
					info: 0
				}],
				//右侧按钮组件配置对象
				buttonGroup:[{
					text: '加入购物车',
					backgroundColor: '#ff0000',
					color: '#fff',
				},{
					text: '立即购买',
					backgroundColor: '#ffa200',
					color: '#fff',
				}]
			};
			
		},
		onLoad(options) {
			//获取页面数据(商品id)
			const goods_id = options.goods_id
			
			//调用请求商品详情数据的方法
			this.getGoodsDetail(goods_id)
		},
		
		methods:{
			...mapMutations('m_cart',['addToCart']),
			//定义请求商品详情的方法
			async getGoodsDetail(goods_id){
				//发送请求
				const {data : res} = await  uni.$http.get('/api/public/v1/goods/detail',{goods_id})
				//数据请求失败后执行
				if(res.meta.status !== 200) return uni.$showMsg()

				//解决商品图文信息区域图片底部间隔问题
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
				this.goods_info = res.message	
				
				
			},
			
			//实现轮播图的点击预览效果
			preview(i){
				//调用previewImage方法预览图片
				uni.previewImage({
					//预览时默认图片索引为点击时的图片
					current: i,
					//所有图片的url地址数组
					urls: this.goods_info.pics.map(x => x.pics_big)
				})
			},
			
			onClick(e){
				if(e.content.text === '购物车'){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			buttonClick(e){
				
				if(e.content.text === '加入购物车'){
					
					//组织商品信息对象
					//goods_id,goods_name,goods_price,goods_count,goods_small_logo,goods_state
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name: this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count: 1,
						goods_small_logo: this.goods_info.goods_small_logo,
						goods_state: true,
					}
					
					
					
					this.addToCart(goods)
				}
			
			}
			
		},
		
		
		
	}
</script>

<style lang="scss">
	
swiper {
	height: 750rpx;
	
	image{
		width: 100%;
		height: 100%;
	}
}


.goods-info-box{
	padding: 10px;
	padding-right: 0px;
	.price{
		color: #C00000;
		font-size: 18px;
		margin: 10px 0
	}
	.goods-info-body{
		display: flex;
		justify-content: space-between;
		
		.goods-name{
			font-size: 13px;
			margin-right: 10px;
		}
		.favi{
			width: 120px;
			font-size: 12px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf{
		font-size: 12px;
		color: gray;
		margin: 10px 0;
	}
}


.goods_nav{
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}
.goods-detail-container{
	padding-bottom: 50px;
}
</style>
